112 ART. 1. 1. IJIMA : IIEXACTINELLTDA, ITT. 



bodv. Dermalia and parenchymalia as in Leucopsacus ; the former 

 consisting of oxypentactins and the latter, mostly of oxyhexactins. 

 Some, but not all, dermalia with bent spines along tlie outer side 

 of paratangentials. Discohexasters of varying size and appearance, 

 but not larger than 114/^ diameter. Sisimatocome not found. 



CAULOPHACID^^ Ij. n. fam. 



Lyssacine Hexasterophora of cup-like or mushroom- 

 like body; always stalked and firmly attached at base; 

 solitary or forming a small branched colony by bud- 

 ding. Dermal skeleton composed of a layer of small 

 hexactinic or pentactinic pinular dermalia and of large 

 pentactinic hypodermalia. Hexasters represented main- 

 ly by discohexasters, either alone or in association with 

 strobiloplumicome. 



The family comprises two genera, Caulophacus and Sympagella. 



CAULOPHACUS F. E. ScH. 



Caulophacids of cup-like or fungiform body ; solitary (al- 

 ways ?). Parenchymalia chiafly diactins but including also large 

 regular hexactins. Dermalia, hexactinic pinnies ; on the stalk 

 these may be replaced by pentactinic forms. Gastralia, either 

 hexactinic or pentactinic pinnies. Discohexaster present in vary- 

 ing forms. Without strobiloplumicome. 



A key to all the species, at present known, of this genus is 

 given on p. 86, 



